Super Mario Bros is a cool Mario game where your mission is to kill all the enemies by jumping over them and reach the flag at the end of each level to progress to the next. You have to visit different worlds and bonus levels to score as many points as possible. Collect coins to score extra points. Eat mushroom to grow bigger and flower to throw fireballs. Use the keyboard left and right arrow keys to walk, press S key to jump or do actions, and A key to throw fireballs.